<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title></title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0,user-scalable=no">
    <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
    <style type="text/css">
        a{
            display: block;
            text-align: center;
            color: gray;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="jumbotron">
        <h1>Hello, world!</h1>
    </div>
    <div class="row">
        <div class="col-lg-3 col-lg-push-9 col-md-4 col-md-push-8 col-xs-6">
            <div class="thumbnail">
                <img src="img/webpack.png" alt="...">
                <div class="caption">
                    <h3 class="text-center">Bootstrap 编码规范</h3>
                    <a href="javascript:;" class="text-center">by @mdo</a>
                    <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
                </div>
            </div>
        </div>

        <div class="col-lg-3 col-lg-push-3 col-md-4 col-xs-6">
            <div class="thumbnail">
                <img src="img/react.png" alt="...">
                <div class="caption">
                    <h3>Bootstrap 编码规范</h3>
                    <a href="javascript:;" class="text-center">by @mdo</a>
                    <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
                </div>
            </div>
        </div>

        <div class="col-lg-3 col-lg-pull-3 col-md-4 col-md-pull-8 col-xs-6">
            <div class="thumbnail">
                <img src="img/yarn.png" alt="...">
                <div class="caption">
                    <h3>Bootstrap 编码规范</h3>
                    <a href="javascript:;" class="text-center">by @mdo</a>
                    <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
                </div>
            </div>
        </div>

        <div class="col-lg-3 col-lg-pull-9 col-md-4 col-xs-6">
            <div class="thumbnail">
                <img src="img/bootstrap.png" alt="...">
                <div class="caption">
                    <h3>Bootstrap 编码规范</h3>
                    <a href="javascript:;" class="text-center">by @mdo</a>
                    <p>Bootstrap 编码规范：编写灵活、稳定、高质量的 HTML 和 CSS 代码的规范。</p>
                </div>
            </div>
        </div>
    </div>
</div>
</body>
<script src="js/jquery.min.js"></script>
<script src="js/bootstrap.min.js"></script>
</html>
